pnowojski commented on a change in pull request #13529: URL: https://github.com/apache/flink/pull/13529#discussion_r501739663
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/sort/MultiInputSortingDataInputs.java ########## @@ -0,0 +1,341 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.streaming.api.operators.sort; + +import org.apache.flink.api.common.typeutils.TypeComparator; +import org.apache.flink.api.common.typeutils.TypeSerializer; +import org.apache.flink.api.java.functions.KeySelector; +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.configuration.AlgorithmOptions; +import org.apache.flink.configuration.Configuration; +import org.apache.flink.core.io.InputStatus; +import org.apache.flink.core.memory.DataOutputSerializer; +import org.apache.flink.runtime.checkpoint.channel.ChannelStateWriter; +import org.apache.flink.runtime.io.disk.iomanager.IOManager; +import org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable; +import org.apache.flink.runtime.memory.MemoryAllocationException; +import org.apache.flink.runtime.memory.MemoryManager; +import org.apache.flink.runtime.operators.sort.ExternalSorter; +import org.apache.flink.runtime.operators.sort.PushSorter; +import org.apache.flink.streaming.api.watermark.Watermark; +import org.apache.flink.streaming.runtime.io.PushingAsyncDataInput; +import org.apache.flink.streaming.runtime.io.StreamTaskInput; +import org.apache.flink.streaming.runtime.streamrecord.LatencyMarker; +import org.apache.flink.streaming.runtime.streamrecord.StreamRecord; +import org.apache.flink.streaming.runtime.streamstatus.StreamStatus; +import org.apache.flink.util.ExceptionUtils; +import org.apache.flink.util.MutableObjectIterator; + +import javax.annotation.Nonnull; + +import java.io.IOException; +import java.util.Arrays; +import java.util.PriorityQueue; +import java.util.concurrent.CompletableFuture; + +/** + * An entry class for creating coupled, sorting inputs. The inputs are sorted independently and afterwards + * the inputs are being merged in order. It is done, by reporting availability only for the input which is + * current head for the sorted inputs. + */ +public class MultiInputSortingDataInputs<K> { Review comment: Ok, usually I would suggest to squash such commits (to avoid having a dead code), but that's a minor issue, while indeed otherwise those two squashed commits would be quite big, so I'm fine with leaving it as it is. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
